Expose ``build_file_path`` to Skylark rules.

Also adds neccessary support to Skylark implementation of IDE info
aspect.

--
MOS_MIGRATED_REVID=115084383

1 files changed, 10 insertions, 1 deletions

diff --git a/src/main/java/com/google/devtools/build/lib/rules/SkylarkRuleContext.java b/src/main/java/com/google/devtools/build/lib/rules/SkylarkRuleContext.java
index 7fe48a03bd..e6b3a513fb 100644
--- a/src/main/java/com/google/devtools/build/lib/rules/SkylarkRuleContext.java
+++ b/src/main/java/com/google/devtools/build/lib/rules/SkylarkRuleContext.java
@@ -43,6 +43,7 @@ import com.google.devtools.build.lib.packages.BuildType;
 import com.google.devtools.build.lib.packages.ImplicitOutputsFunction;
 import com.google.devtools.build.lib.packages.ImplicitOutputsFunction.SkylarkImplicitOutputsFunction;
 import com.google.devtools.build.lib.packages.OutputFile;
+import com.google.devtools.build.lib.packages.Package;
 import com.google.devtools.build.lib.packages.RawAttributeMapper;
 import com.google.devtools.build.lib.shell.ShellUtils;
 import com.google.devtools.build.lib.shell.ShellUtils.TokenizationException;
@@ -400,7 +401,6 @@ public final class SkylarkRuleContext {
       return ruleClassName;
     }
 
-
     public ImmutableMap<Artifact, FilesToRunProvider> getExecutableRunfilesMap() {
       return executableRunfilesMap;
     }
@@ -661,4 +661,13 @@ public final class SkylarkRuleContext {
   public Artifact getVolatileWorkspaceStatus() {
     return ruleContext.getAnalysisEnvironment().getVolatileWorkspaceStatusArtifact();
   }
+
+  @SkylarkCallable(name = "build_file_path", structField = true, documented = true,
+      doc = "Returns path to the BUILD file for this rule, relative to the source root"
+  )
+  public String getBuildFileRelativePath() {
+    Package pkg = ruleContext.getRule().getPackage();
+    Root root = Root.asSourceRoot(pkg.getSourceRoot());
+    return pkg.getBuildFile().getPath().relativeTo(root.getPath()).getPathString();
+  }
 }